# NTSB NYC91LA093: Cessna 150L, N19102, Chambersburg, PA, March 24, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 24, 1991, 11:15 local (16:15 UTC)
- Place: Chambersburg, PA
- Coordinates: 39.929309, -77.650947 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.9293&lon=-77.6509&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 36894
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC91LA093
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36894/pdf
- Page: https://openairdocs.org/ntsb/NYC91LA093

## Probable cause

CARBURETOR ICE AND THE PILOT'S IMPROPER USE OF CARBURETOR HEAT.  A FACTOR RELATED TO THE ACCIDENT WAS: CARBURETOR ICING (WEATHER CONDITIONS).

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - nonmechanical, approach - vfr pattern - base leg/base to final
  - weather condition - carburetor icing conditions (contributing factor)
  - fuel system,carburetor - ice (cause)
  - carburetor heat - improper use of, pilot in command (cause)
- Forced landing, descent - emergency
- In flight collision with object, landing
  - object - tree(s)

## Analysis

THE PILOT WAS TURNING BASE TO FINAL WHEN THE ENGINE LOST POWER. THE CARBURETOR HEAT WAS FOUND IN THE OFF POSITION AT THE ACCIDENT SITE. THE CARBURETOR ICING PROBABILITY CHART SHOWED THE WEATHER CONDITIONS AT THE TIME OF THE ACCIDENT WERE CONDUCTIVE FOR SERIOUS ICING DURING GLIDE POWER.

## Aircraft

- Registration: [N19102](https://openairdocs.org/deregistered/N19102-2012-08-20), registration cancelled 2012-08-20, S/N 15074171, built 1972 (OpenAirDocs)
- Reported make and model: CESSNA 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 150 74171
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Earl Witt
- Registered owner: Earl Witt
- Last inspection: Unknown, January 2, 2000
- Airport: N68, Chambersburg, runway 24, 3,304 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; student; medical: class 3, valid medical--no waivers/lim.; flight hours: 29 total, 29 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 9 knots
- Visibility: 6 statute miles
- Lowest ceiling: none

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19910324007179A](https://openairdocs.org/incident/19910324007179A), Mar 24, 1991: Cessna 150L, Chambersburg, PA, Substantial damage. Engine failure, landed in field. (.4)the pilot was turning base to final when the engine lost power. The carburetor heat was found in the off position at the…

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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